Ndi chitukuko cha anthu, dziko limapereka chidwi kwambiri pa ntchito yomanga ma municipalities. Chifukwa chake, monga chida chofunikira pakupanga ndi kumanga nkhani zamatauni, zosakaniza za asphalt zikuchulukirachulukira ndipo kuchuluka kwa ntchito kukuchulukirachulukira. Zomera zosakaniza phula zimakumana ndi zolakwika zina mochulukirapo kapena mochepera pakugwiritsa ntchito. Nkhaniyi ikufotokoza mwachidule momwe mungathetsere vuto la valavu yobwerera ku chomera chosakaniza phula.

Ngati pali vuto ndi valavu yowonongeka muzitsulo zosakaniza za asphalt, mawonetseredwe makamaka kuti valavu sichitha kusinthidwa kapena kusinthika kumachedwa. Pakhoza kukhalanso kutayikira kwa mpweya, kulephera kwa ma valve oyendetsa magetsi a electromagnetic, etc. Kawirikawiri, pamene mukukumana ndi vuto loterolo, chinthu choyamba choyenera kuganizira ndi kupeza chomwe chimayambitsa cholakwikacho, kuti cholakwacho chichotsedwe molondola komanso moyenera.
Ngati valavu yobwererayo siyingasinthidwe kapena kusinthaku kukucheperachepera, wogwiritsa ntchitoyo atha kuganizira zifukwa monga kusapaka bwino kwamafuta, kutsekeka kwa masika, kapena zodetsa zamafuta zomwe zikuphwanya magawo otsetsereka. Panthawiyi, wogwiritsa ntchito amatha kuyang'ana kachipangizo kachipangizo ka mafuta kuti ayang'ane momwe akugwirira ntchito, ndiyeno atsimikizire kukhuthala kwa mafuta odzola. Ngati vuto likupezeka kapena likufunika, mafuta odzola kapena kasupe amatha kusinthidwa.
Kutaya kwa gasi nthawi zambiri kumayambitsidwa ndi valavu yosinthira ya phula losakaniza phula lomwe limagwira ntchito pafupipafupi kwa nthawi yayitali, zomwe zimapangitsa kuvala kwa mphete yosindikizira ya valve ndi mbali zina. Ngati chisindikizocho sichili cholimba, kutuluka kwa gasi kudzachitika mwachibadwa. Panthawiyi, mphete yosindikizira kapena tsinde la valve ndi mbali zina ziyenera kusinthidwa.